Python socket.getservbyname函数代码示例

def ReplacePortNames(port_range_string):
  """Replace port names with port numbers in a port-range string.

  Args:
    port_range_string: The string to parse.

  Returns:
    A port range string specifying ports only by number.

  Raises:
    ValueError: If the port_range_string is the wrong type or malformed.
  """
  if not isinstance(port_range_string, basestring):
    raise ValueError('Invalid port range: %s' % port_range_string)

  ports = port_range_string.split('-')
  if len(ports) not in [1, 2]:
    raise ValueError('Invalid port range: %s' % port_range_string)

  try:
    low_port = socket.getservbyname(ports[0])
  except socket.error:
    low_port = int(ports[0])

  try:
    high_port = socket.getservbyname(ports[-1])
  except socket.error:
    high_port = int(ports[-1])

  if low_port == high_port:
    return '%d' % low_port
  else:
    return '%d-%d' % (low_port, high_port)

 def testGetServBy(self):
     eq = self.assertEqual
     # Find one service that exists, then check all the related interfaces.
     # I've ordered this by protocols that have both a tcp and udp
     # protocol, at least for modern Linuxes.
     if sys.platform in ('linux2', 'freebsd4', 'freebsd5', 'freebsd6',
                         'freebsd7', 'darwin'):
         # avoid the 'echo' service on this platform, as there is an
         # assumption breaking non-standard port/protocol entry
         services = ('daytime', 'qotd', 'domain')
     else:
         services = ('echo', 'daytime', 'domain')
     for service in services:
         try:
             port = socket.getservbyname(service, 'tcp')
             break
         except socket.error:
             pass
     else:
         raise socket.error
     # Try same call with optional protocol omitted
     port2 = socket.getservbyname(service)
     eq(port, port2)
     # Try udp, but don't barf it it doesn't exist
     try:
         udpport = socket.getservbyname(service, 'udp')
     except socket.error:
         udpport = None
     else:
         eq(udpport, port)
     # Now make sure the lookup by port returns the same service name
     eq(socket.getservbyport(port2), service)
     eq(socket.getservbyport(port, 'tcp'), service)
     if udpport is not None:
         eq(socket.getservbyport(udpport, 'udp'), service)

def get_port(p):
    sport = p.sprintf("%TCP.sport%")
    dport = p.sprintf("%TCP.dport%")
    if not sport.isdigit():
        sport = str(getservbyname(sport))
    if not dport.isdigit():
        dport = str(getservbyname(dport))
    return sport, dport

	def turtle_client(self):
	    s = socket.socket()

	    HOST = socket.gethostbyname("measerver")
	    PORT = socket.getservbyname("mea_srv")
	    print HOST
	    print PORT
	    #invoco  el metodo connect del socket pasando como parametro la tupla IP , puerto
	    s.connect((HOST,  PORT))    
	    print "Turtle_com------->conectado a servidor."

	    message = str(self.img_mea)
	    print "Turtle_com----------->enviando mensaje a servidor:"
	    print message
	    s.send(message)
	    print "Turtle_com---------->esperando respuesta del servidor:"
	    recibido = s.recv(1024)
	    print "Turtle_com---------->recibido: "
	    print recibido
	    #cierro  socket
	    s.close()
	
	    self.pub_Cult.publish(recibido)  

	    return True

 def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
     address = tok.get_string()
     protocol = tok.get_string()
     if protocol.isdigit():
         protocol = int(protocol)
     else:
         protocol = socket.getprotobyname(protocol)
     bitmap = []
     while 1:
         (ttype, value) = tok.get()
         if ttype == dnspython.tokenizer.EOL or ttype == dnspython.tokenizer.EOF:
             break
         if value.isdigit():
             serv = int(value)
         else:
             if protocol != _proto_udp and protocol != _proto_tcp:
                 raise NotImplementedError, "protocol must be TCP or UDP"
             if protocol == _proto_udp:
                 protocol_text = "udp"
             else:
                 protocol_text = "tcp"
             serv = socket.getservbyname(value, protocol_text)
         i = serv // 8
         l = len(bitmap)
         if l < i + 1:
             for j in xrange(l, i + 1):
                 bitmap.append('\x00')
         bitmap[i] = chr(ord(bitmap[i]) | (0x80 >> (serv % 8)))
     bitmap = dnspython.rdata._truncate_bitmap(bitmap)
     return cls(rdclass, rdtype, address, protocol, bitmap)

 def __init__(self, data, panda):
     self.data = data
     self.panda = panda
     service = data[7].split("[")
     #self.blinks = {}
     print service[0]
     try:
         port = socket.getservbyname(service[0])
         print port
     except:
         port = ""
     if service[0] == "init":
         col1 = self.panda.single_node.main_node.colorScaleInterval(1, (1, 1, 0, 0.7), (0.4, 0.2, 0.7, 0.4))
         col2 = self.panda.single_node.main_node.colorScaleInterval(1, (0.4, 0.2, 0.7, 0.4), (1, 1, 0, 0.7))
         col3 = self.panda.single_node.main_node.colorScaleInterval(5, (0.4, 0.2, 0.7, 0.4), (0.4, 0.2, 0.7, 0.4))
         blink = Sequence(col1, col2, col3, name="blink")
         #blink.loop()
     for i in self.panda.single_node.services:
         print ":" + str(i[0]) + ":" + str(port) + ":"
         if str(i[0]) == str(port):
             print "match"
             self.panda.single_node.apps[i].setColorOff()
             col1 = self.panda.single_node.apps[i].colorScaleInterval(1, (1, 1, 0, 1), (1, 0.4, 0.7, 1.0))
             col2 = self.panda.single_node.apps[i].colorScaleInterval(1, (1, 0.4, 0.7, 1.0), (1, 1, 0, 1))
             col3 = self.panda.single_node.apps[i].colorScaleInterval(2, (random.uniform(1,3), 0.4, 0.7, 1.0), (1, 0.4, 0.7, 1.0))
             blink = Sequence(col1, col2, col3, name="blink")
             #self.blinks[port].loop()
     #looper = Parallel(name="looper")
     try:
         self.panda.single_node.looper.append(blink)
     except:
         pass
     
     self.panda.single_node.looper.loop()

def _get_storage_xml(params, ignore_source=False):
    src_type = params.get('src_type')
    disk = E.disk(type=src_type, device=params.get('type'))
    disk.append(E.driver(name='qemu', type=params['format']))

    disk.append(E.target(dev=params.get('dev'), bus=params['bus']))
    if params.get('address'):
        # ide disk target id is always '0'
        disk.append(E.address(
            type='drive', controller=params['address']['controller'],
            bus=params['address']['bus'], target='0',
            unit=params['address']['unit']))

    if ignore_source:
        return ET.tostring(disk)

    # Working with url paths
    if src_type == 'network':
        output = urlparse.urlparse(params.get('path'))
        host = E.host(name=output.hostname, port=
                      output.port or socket.getservbyname(output.scheme))
        source = E.source(protocol=output.scheme, name=output.path)
        source.append(host)
        disk.append(source)
    else:
        # Fixing source attribute
        source = E.source()
        source.set(DEV_TYPE_SRC_ATTR_MAP[src_type], params.get('path'))
        disk.append(source)

    return ET.tostring(disk)

def test():
    """Test program for telnetlib.

    Usage: python telnetlib.py [-d] ... [host [port]]

    Default host is localhost; default port is 23.

    """
    debuglevel = 0
    while sys.argv[1:] and sys.argv[1] == '-d':
        debuglevel = debuglevel+1
        del sys.argv[1]
    host = 'localhost'
    if sys.argv[1:]:
        host = sys.argv[1]
    port = 0
    if sys.argv[2:]:
        portstr = sys.argv[2]
        try:
            port = int(portstr)
        except ValueError:
            port = socket.getservbyname(portstr, 'tcp')
    tn = Telnet()
    tn.set_debuglevel(debuglevel)
    tn.open(host, port, timeout=0.5)
    tn.interact()
    tn.close()

    def buildOptions(self, parser):
        """
        Command-line options to be supported
        """
        SMTP_PORT = 25
        try:
            SMTP_PORT = socket.getservbyname('smtp', 'tcp')
        except socket.error:
            pass

        parser.add_option('--useFileDescriptor',
            dest='useFileDescriptor',
            default=-1,
            type="int",
            help="File descriptor to use for listening")
        parser.add_option('--listenPort',
            dest='listenPort',
            default=SMTP_PORT,
            type="int",
            help="Alternative listen port to use (default %default)")
        parser.add_option('--eventseverity',
            dest='eventseverity',
            default="2",
            type="int",
            help="Severity for events created")
        parser.add_option('--listenip',
            dest='listenip',
            default='0.0.0.0',
            help='IP address to listen on. Default is 0.0.0.0')

          def makeConnection(transport):
            nstHost = host

            try:
              try:
                transport.connect(host, port)

              except ValueError:

                # Avoid ImportError: cannot import name dns
                from untwisted import dns

                nstHost = (yield dns.lookup(host)).answer[0].address

                transport.connect(nstHost, port)

            # tcp.Connector calls socket.getservbyname() but .connect() doesn't : (
            except TypeError:
              nstPort = socket.getservbyname(port, 'udp')

              # Avoid RuntimeError: already connected
              transport._connectedAddr = None

              transport.connect(nstHost, nstPort)

            raise StopIteration(transport)

def passiveUDP(host, service, qlen=0, portbase=0):
    '''
    create and bind a UDP server socket
        parametrs:
            host: network interface the service to be bound
            service: name (string) or port number (short) of service
            qlen: queue length
            portbase: a workaround for some privilege services, eg, echo,
                a portbase of 7000 will shift echo service to port 7007 (7000+7)
        (host, service) defines the server address
        each call reuses the specified port number
    '''
    serv_name = str(service)
    if '0' <= serv_name[:1] <= '9':        # port # in integer
        port = int(serv_name)
    else:                # resolve by service name
        try:
            port = socket.getservbyname(serv_name, 'udp')
        except:                # something wrong with port #
            sys.exit('Format error in port number!\n')
        port += portbase
    msock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    msock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
    msock.bind((host, port))
    return msock

def main():
    argc = len(sys.argv)
    if  argc < 3:
        print("""
        Usage : echo_server ipaddr port
        """)
        sys.exit()
    ipaddr = sys.argv[1]
    porttext = sys.argv[2]
    #get port
    try:
        port = int(porttext)
    except:
        try:
            port = socket.getservbyname(porttext)
        except socket.gaierror :
            print('port is illeagl')
            sys.exit()
    #get connection
    try:
        echo = EchoServer(ipaddr,port,10)
        echo.run()
        echo.close()
    except  KeyboardInterrupt:
        print('server stop')

 def requestProcessor(self, request):
     if self.include:
         request_data = self.SEPARATOR % 'Request'
         genHdr = []
         try:
             remadd = socket.gethostbyname(request.get_host()) + ':' + str(socket.getservbyname(request.get_type()))
         except:
             pass
         else:
             genHdr.append(('Remote Address', remadd))
         genHdr.append(('Request Url', request.get_full_url()))
         genHdr.append(('Request Method', request.get_method()))
 #         genHdr.append(('Status Code', str(request.getcode())))
 
         for key, value in genHdr: request_data += '\n' + key + ': ' + str(value)
 
         request_data += self.HEAD_SEP
         request_headers = request.headers 
         for key, value in sorted(request_headers.items()): request_data += '\n' + key + ': ' + str(value)
         if request.unredirected_hdrs:
             request_data += self.HEAD_SEP
             for key, value in request.unredirected_hdrs.items(): request_data += '\n' + key + ': ' + str(value)
         self.log += request_data
     if self.origReqMethod and self.origReqMethod not in ['GET', 'POST'] and self.errCode in [301,302,303]:
         setattr(request, 'get_method', lambda: self.origReqMehod)
         self.errCode = 0
     return request
     pass

def find_service_name():
	protocolname = 'tcp'

	try:
		print ("service name: %s => port: %s" %(app_name, socket.getservbyname(app_name,'tcp')))
	except Exception as err:
		print (err)

def get_disk_xml(params):
    """
    <disk type='file' device='cdrom'>
      <driver name='qemu' type='raw'/>

      [source XML according to src_type]

      <target dev='%(dev)s' bus='%(bus)s'/>
      <readonly/>
    </disk>
    """
    path = params['path']
    disk_type = params.get('disk', None)
    if disk_type is None:
        disk_type = _get_disk_type(path) if len(path) > 0 else 'file'
    disk = E.disk(type=disk_type, device=params['type'])
    driver = E.driver(name='qemu', type=params['format'])
    if params['type'] != 'cdrom':
        driver.set('cache', 'none')

        if params.get('pool_type') == "netfs":
            driver.set("io", "native")

    disk.append(driver)

    # Get device name according to bus and index values
    dev = params.get('dev', (BUS_TO_DEV_MAP[params['bus']] +
                             string.lowercase[params.get('index', 0)]))
    disk.append(E.target(dev=dev, bus=params['bus']))

    if params.get('address'):
        # ide disk target id is always '0'
        disk.append(E.address(
            type='drive', controller=params['address']['controller'],
            bus=params['address']['bus'], target='0',
            unit=params['address']['unit']))

    if len(params['path']) == 0:
        return (dev, ET.tostring(disk, encoding='utf-8', pretty_print=True))

    if disk_type == 'network':
        """
        <source protocol='%(protocol)s' name='%(url_path)s'>
          <host name='%(hostname)s' port='%(port)s'/>
        </source>
        """
        output = urlparse.urlparse(params['path'])
        port = str(output.port or socket.getservbyname(output.scheme))

        source = E.source(protocol=output.scheme, name=output.path)
        source.append(E.host(name=output.hostname, port=port))
    else:
        """
        <source file='%(src)s' />
        """
        source = E.source()
        source.set(DEV_TYPE_SRC_ATTR_MAP[disk_type], params['path'])

    disk.append(source)
    return (dev, ET.tostring(disk, encoding='utf-8', pretty_print=True))